[Qemu-devel] [PATCH 5/8] tcg/s390: Merge ori+xori facilities check to tcg_target_op_def
From: Richard HendersonSigned-off-by: Richard Henderson --- tcg/s390/tcg-target.inc.c | 101 +++--- 1 file changed, 33 insertions(+), 68 deletions(-) diff --git a/tcg/s390/tcg-target.inc.c b/tcg/s390/tcg-target.inc.c index 6b08ccea6d..5414c9d879 100644 --- a/tcg/s390/tcg-target.inc.c +++ b/tcg/s390/tcg-target.inc.c @@ -40,8 +40,8 @@ #define TCG_CT_CONST_S16 0x100 #define TCG_CT_CONST_S32 0x200 -#define TCG_CT_CONST_ORI 0x400 -#define TCG_CT_CONST_XORI 0x800 +#define TCG_CT_CONST_NN16 0x400 +#define TCG_CT_CONST_NN32 0x800 #define TCG_CT_CONST_U31 0x1000 #define TCG_CT_CONST_S33 0x2000 #define TCG_CT_CONST_ZERO 0x4000 @@ -395,11 +395,11 @@ static const char *target_parse_constraint(TCGArgConstraint *ct, case 'J': ct->ct |= TCG_CT_CONST_S32; break; -case 'O': -ct->ct |= TCG_CT_CONST_ORI; +case 'N': +ct->ct |= TCG_CT_CONST_NN16; break; -case 'X': -ct->ct |= TCG_CT_CONST_XORI; +case 'M': +ct->ct |= TCG_CT_CONST_NN32; break; case 'C': /* ??? We have no insight here into whether the comparison is @@ -424,60 +424,6 @@ static const char *target_parse_constraint(TCGArgConstraint *ct, return ct_str; } -/* Immediates to be used with logical OR. This is an optimization only, - since a full 64-bit immediate OR can always be performed with 4 sequential - OI[LH][LH] instructions. What we're looking for is immediates that we - can load efficiently, and the immediate load plus the reg-reg OR is - smaller than the sequential OI's. */ - -static int tcg_match_ori(TCGType type, tcg_target_long val) -{ -if (s390_facilities & FACILITY_EXT_IMM) { -if (type == TCG_TYPE_I32) { -/* All 32-bit ORs can be performed with 1 48-bit insn. */ -return 1; -} -} - -/* Look for negative values. These are best to load with LGHI. */ -if (val < 0) { -if (val == (int16_t)val) { -return 0; -} -if (s390_facilities & FACILITY_EXT_IMM) { -if (val == (int32_t)val) { -return 0; -} -} -} - -return 1; -} - -/* Immediates to be used with logical XOR. This is almost, but not quite, - only an optimization. XOR with immediate is only supported with the - extended-immediate facility. That said, there are a few patterns for - which it is better to load the value into a register first. */ - -static int tcg_match_xori(TCGType type, tcg_target_long val) -{ -if ((s390_facilities & FACILITY_EXT_IMM) == 0) { -return 0; -} - -if (type == TCG_TYPE_I32) { -/* All 32-bit XORs can be performed with 1 48-bit insn. */ -return 1; -} - -/* Look for negative values. These are best to load with LGHI. */ -if (val < 0 && val == (int32_t)val) { -return 0; -} - -return 1; -} - /* Test if a constant matches the constraint. */ static int tcg_target_const_match(tcg_target_long val, TCGType type, const TCGArgConstraint *arg_ct) @@ -499,10 +445,10 @@ static int tcg_target_const_match(tcg_target_long val, TCGType type, return val == (int32_t)val; } else if (ct & TCG_CT_CONST_S33) { return val >= -0xll && val <= 0xll; -} else if (ct & TCG_CT_CONST_ORI) { -return tcg_match_ori(type, val); -} else if (ct & TCG_CT_CONST_XORI) { -return tcg_match_xori(type, val); +} else if (ct & TCG_CT_CONST_NN16) { +return !(val < 0 && val == (int16_t)val); +} else if (ct & TCG_CT_CONST_NN32) { +return !(val < 0 && val == (int32_t)val); } else if (ct & TCG_CT_CONST_U31) { return val >= 0 && val <= 0x7fff; } else if (ct & TCG_CT_CONST_ZERO) { @@ -,11 +2168,12 @@ static const TCGTargetOpDef *tcg_target_op_def(TCGOpcode op) static const TCGTargetOpDef r_rC = { .args_ct_str = { "r", "rC" } }; static const TCGTargetOpDef r_rZ = { .args_ct_str = { "r", "rZ" } }; static const TCGTargetOpDef r_r_ri = { .args_ct_str = { "r", "r", "ri" } }; +static const TCGTargetOpDef r_0_r = { .args_ct_str = { "r", "0", "r" } }; static const TCGTargetOpDef r_0_ri = { .args_ct_str = { "r", "0", "ri" } }; static const TCGTargetOpDef r_0_rI = { .args_ct_str = { "r", "0", "rI" } }; static const TCGTargetOpDef r_0_rJ = { .args_ct_str = { "r", "0", "rJ" } }; -static const TCGTargetOpDef r_0_rO = { .args_ct_str = { "r", "0", "rO" } }; -static const TCGTargetOpDef r_0_rX = { .args_ct_str = { "r", "0", "rX" } }; +static const TCGTargetOpDef r_0_rN = { .args_ct_str = { "r", "0", "rN" } }; +static const TCGTargetOpDef r_0_rM = { .args_ct_str = { "r", "0", "rM" } }; static const TCGTargetOpDef a2_r = { .args_ct_str = { "r", "r", "0", "1", "r", "r" } }; static const
[Qemu-devel] [PATCH 5/8] tcg/s390: Merge ori+xori facilities check to tcg_target_op_def
Signed-off-by: Richard Henderson--- tcg/s390/tcg-target.inc.c | 101 +++--- 1 file changed, 33 insertions(+), 68 deletions(-) diff --git a/tcg/s390/tcg-target.inc.c b/tcg/s390/tcg-target.inc.c index 6b08ccea6d..5414c9d879 100644 --- a/tcg/s390/tcg-target.inc.c +++ b/tcg/s390/tcg-target.inc.c @@ -40,8 +40,8 @@ #define TCG_CT_CONST_S16 0x100 #define TCG_CT_CONST_S32 0x200 -#define TCG_CT_CONST_ORI 0x400 -#define TCG_CT_CONST_XORI 0x800 +#define TCG_CT_CONST_NN16 0x400 +#define TCG_CT_CONST_NN32 0x800 #define TCG_CT_CONST_U31 0x1000 #define TCG_CT_CONST_S33 0x2000 #define TCG_CT_CONST_ZERO 0x4000 @@ -395,11 +395,11 @@ static const char *target_parse_constraint(TCGArgConstraint *ct, case 'J': ct->ct |= TCG_CT_CONST_S32; break; -case 'O': -ct->ct |= TCG_CT_CONST_ORI; +case 'N': +ct->ct |= TCG_CT_CONST_NN16; break; -case 'X': -ct->ct |= TCG_CT_CONST_XORI; +case 'M': +ct->ct |= TCG_CT_CONST_NN32; break; case 'C': /* ??? We have no insight here into whether the comparison is @@ -424,60 +424,6 @@ static const char *target_parse_constraint(TCGArgConstraint *ct, return ct_str; } -/* Immediates to be used with logical OR. This is an optimization only, - since a full 64-bit immediate OR can always be performed with 4 sequential - OI[LH][LH] instructions. What we're looking for is immediates that we - can load efficiently, and the immediate load plus the reg-reg OR is - smaller than the sequential OI's. */ - -static int tcg_match_ori(TCGType type, tcg_target_long val) -{ -if (s390_facilities & FACILITY_EXT_IMM) { -if (type == TCG_TYPE_I32) { -/* All 32-bit ORs can be performed with 1 48-bit insn. */ -return 1; -} -} - -/* Look for negative values. These are best to load with LGHI. */ -if (val < 0) { -if (val == (int16_t)val) { -return 0; -} -if (s390_facilities & FACILITY_EXT_IMM) { -if (val == (int32_t)val) { -return 0; -} -} -} - -return 1; -} - -/* Immediates to be used with logical XOR. This is almost, but not quite, - only an optimization. XOR with immediate is only supported with the - extended-immediate facility. That said, there are a few patterns for - which it is better to load the value into a register first. */ - -static int tcg_match_xori(TCGType type, tcg_target_long val) -{ -if ((s390_facilities & FACILITY_EXT_IMM) == 0) { -return 0; -} - -if (type == TCG_TYPE_I32) { -/* All 32-bit XORs can be performed with 1 48-bit insn. */ -return 1; -} - -/* Look for negative values. These are best to load with LGHI. */ -if (val < 0 && val == (int32_t)val) { -return 0; -} - -return 1; -} - /* Test if a constant matches the constraint. */ static int tcg_target_const_match(tcg_target_long val, TCGType type, const TCGArgConstraint *arg_ct) @@ -499,10 +445,10 @@ static int tcg_target_const_match(tcg_target_long val, TCGType type, return val == (int32_t)val; } else if (ct & TCG_CT_CONST_S33) { return val >= -0xll && val <= 0xll; -} else if (ct & TCG_CT_CONST_ORI) { -return tcg_match_ori(type, val); -} else if (ct & TCG_CT_CONST_XORI) { -return tcg_match_xori(type, val); +} else if (ct & TCG_CT_CONST_NN16) { +return !(val < 0 && val == (int16_t)val); +} else if (ct & TCG_CT_CONST_NN32) { +return !(val < 0 && val == (int32_t)val); } else if (ct & TCG_CT_CONST_U31) { return val >= 0 && val <= 0x7fff; } else if (ct & TCG_CT_CONST_ZERO) { @@ -,11 +2168,12 @@ static const TCGTargetOpDef *tcg_target_op_def(TCGOpcode op) static const TCGTargetOpDef r_rC = { .args_ct_str = { "r", "rC" } }; static const TCGTargetOpDef r_rZ = { .args_ct_str = { "r", "rZ" } }; static const TCGTargetOpDef r_r_ri = { .args_ct_str = { "r", "r", "ri" } }; +static const TCGTargetOpDef r_0_r = { .args_ct_str = { "r", "0", "r" } }; static const TCGTargetOpDef r_0_ri = { .args_ct_str = { "r", "0", "ri" } }; static const TCGTargetOpDef r_0_rI = { .args_ct_str = { "r", "0", "rI" } }; static const TCGTargetOpDef r_0_rJ = { .args_ct_str = { "r", "0", "rJ" } }; -static const TCGTargetOpDef r_0_rO = { .args_ct_str = { "r", "0", "rO" } }; -static const TCGTargetOpDef r_0_rX = { .args_ct_str = { "r", "0", "rX" } }; +static const TCGTargetOpDef r_0_rN = { .args_ct_str = { "r", "0", "rN" } }; +static const TCGTargetOpDef r_0_rM = { .args_ct_str = { "r", "0", "rM" } }; static const TCGTargetOpDef a2_r = { .args_ct_str = { "r", "r", "0", "1", "r", "r" } }; static const TCGTargetOpDef a2_ri @@ -2275,11 +,29 @@ static const